This sets each viewport's scissor box starting from first​ up to (but not including) first​ + count​. v​ is an array, where every 4 elements of the array are the scissor box for a single viewport. Therefore, v​ is expected to contain 4 * count​ elements.

Affected commands

The scissor test affects all Rendering Commands that write values to the current draw Framebuffer. Compute shader dispatches are rendering commands, but they do not write to the framebuffer. Even if they write to an image that happens to be within a framebuffer, they are not considered to be writing to the framebuffer.